Improvement in polishing-machines



J. B. MAYHEW.

POLISHING-MACHINE.

Patented Feb. '15, 1876.

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N. PETERS, PHOTO-LITHOGRAFHER. WASHINGYON. 0.6

UNI ED STATES PATENT OFFICE,

JOSIAH B. MAYHEW, OF GAMBRTDGEPORT, MASSACHUSETTS.

IMPROVEMENT IN POLISHING-MACHINES.

, Specification forming part of Letters Patent No. 173,484, dated February 15, 1876; application filed January 12, 187.

To all whom it may concern Be it known that I, JOSIAH B. MAYHEW, of Cambridge-port, ofthe county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Knife-Scouror base, is connected with a movable head or, jaw, G, by means of a wire spring, D, formed and applied to said block and head in manner as represented. i a

The part b of the head, that extends above the spring, constitutes a handle, to be grasped by a person'in order to force the hand, or a disk, 0, of leather affixed to its lower end, down upon a knife-blade while resting upon the disk a. g

A small abutment or guide, E, projecting upward from the block A near its edge, serves to support the back of the knife-blade while the said blade may be pushed forward or drawn backward between the two scouringsurfaces.

The spring not only answersto supportthe head, but to raise it off or relatively to the and moving said blade back and forth between 7 them, it will be scoured, polished, or cleaned.

* The spring, by its flexibility, allows the hand to readily adapt itself to the slanting surface of the blade during the scouring operation.

I claima x '1. As a new or improved manufacture, the

knife-scourer composed of the cushioned head 0 and block A, and their connection-spring D,-combined, constructed, and arranged as set forth.

2 Also, the combination of the cushioned head A and block 0, the connection-spring D, and the guide E, all arranged, constructed, and applied substantially as specified and represented. i

Witnesses R. H. EDDY, J. R. SNow.

JOSIAH B; MAYHEW. 

